Lefcoe N M, Inculet I I
Arch Environ Health. 1975 Dec;30(12):565-70. doi: 10.1080/00039896.1975.10666780.
Three indoor environments, two residential and on institutional, were monitored for particulate and gaseous air pollutants over a one-year period. Inside air particulate levels decreased at night and under conditions of no household activity. Different homes showed different time lags in correlating inside vs outside particle counts. Indoor particle count reduction correlated to rate of air flow through the precipitator. The standard, portable household vacuum cleaner produced about a 100% increase in counts of particles measuring 1.0 mum and larger, as compared to a 50% increase produced by the central vacuum system. Particulates that were smaller than 1.0 mum were not substantially affected by smoking. The indoor gaseous pollutants showed very low maximum levels.
在一年的时间里，对三种室内环境（两种住宅环境和一种机构环境）中的空气颗粒物和气态污染物进行了监测。夜间以及在没有家庭活动的情况下，室内空气颗粒物水平会下降。不同的家庭在室内与室外颗粒物计数的相关性方面表现出不同的时间滞后。室内颗粒物计数的减少与通过除尘器的气流速率相关。与中央真空系统使颗粒物计数增加50%相比，标准的便携式家用真空吸尘器使尺寸在1.0微米及以上的颗粒物计数增加了约100%。小于1.0微米的颗粒物受吸烟的影响不大。室内气态污染物的最高水平非常低。
